Winding device for the manufacturing of boxes, for instance the outer casings of push boxes and similar articles



March 21; 1933. 3 A, E JOHNSON 1302,0133

WINDING DEVICE FOR THE MANUFACTURING OF BOXES, FOR INSTANCE THE OUTER CASINGS OF PUSH BOXES AND SIMILAR ARTICLES Filed June 16, 1932 Patented Mar. 21, 1933 UNITED STATES means Y snort ANDERS EMIL JOHNSON, or ALSTEN, swnnnin nssrenon TO/ AKTIEBOLAYGET ennrr. AREHNS MEKANISKA. VEIR-KSTAD, or sTocKHoLi/r, swEnnN,-A, coRronATIo1\T OF SWEDEN WINDING DEVICE FOR THE MANUFACTURILtG'Qf' tox ns, roitlrnsrnncn THE ou'rnrt ensures or rnsrr BOXES nnnflsrninna ARTICLES Application filed June 16, 1932, Serial No. 617,679,- and at" Germany January so; 1931'. j i 1 v In machines for the manuacturing of boxes the cross sectional shape of the box to be made.

For holding the strip to the mandrel during the winding operation a'jamming device is used consisting of a tongue, which is fixed directly to the mandrel in a swingable manner. The said tongue must be comparatively thin, because theveneer strip generally is wound through more than one revolution round the mandrel and consequently covers the tongue. stance for the obviating of a great length of the mandrel and the unreliable journaling of the mandrel resulting therefrom, and also for causing the tongue to firmly clasp the strip and thus to cause the same to accompany the, mandrel in a reliable manner when rotated, the swinging axis of the tongue must be located as nearly as possible to the inner limit of the path of the veneer strip. Practical experiments now have proved, that the said j ournaling of the tongue involves the drawback, that, if for some reason more than one veneer strip would simultaneously be placed between the mandrel and the tongue, the tongue brought into its operative position forms great angle outwards with the mandrel, whereby the free outer end of the tongue will be located at such a great distance from the mandrel, that when the ordinary smoothing roller which forces the veneer stripand the paper against the mandrel, passes the tongue, the tongue either is made crooked or is subjected to such a straining by thejsaid roller, that it is broken.

For the removing of the said disadvantage the tongue according to this invention is ournaled a yieldable carrier in such manner, that, when there is a plurality of veneer strips between the mandrel and thetongue the spindle on which the tongue is j ournaled may be moved in a direction away from the mandrel, so that the tongue is not subjected to any too great straining and thus breaking of the same is obviated.

In the accompanying drawing a mandrel For practical reasons, for in-' is shown ina perspective view in Fig; "1 providedwith holding device. (tongue) arranged in accordance with one form of execution of the invention. is a section-on line A-'B nFig. 1'." f

" The mandrelfshown asan exampleinthe drawing is adapted for the manuf-acturing'of the-outer casings forpush boxes. The mandrcl 1 is carried by the rotatable shaft 2.; The I tongue forcing the veneer strip' 'against the mandrel and holding the same is swinga-ble on apin t, which is mounted in a fork-shaped carrier 1 5. Thefsaid carrier -'straddlesthe mandrel-and is slidably. mountedin grooves provided'in the sides of the same.- A screw;

shaped spring 6 is mounted in a cavity in the mandrel and bears against the transverse part of the fork 5 and tends to move the fork *5 upwards. The said movement, however,"- is limited by a screw 7 screwedinto the mandrel. The tongue 3 is provided with the ordinary arn1*8,"which, when-subjectedto pressure, forces the tongue 8 against the mandrel. The

said pressure is efiected by a projection 9 on a head 10, which is slidably butnot rotatably mountedon' the spindle 2. The-said head 10 is shifted at the suitable moment and in the ordin ary manner during the operation shown), which engages a circular groove 11 provided in the head 10. i

If a plurality of veneer-strips would be simultaneously introduced into the space beof the machine by a fork-shaped member (not tween the mandrel l and the tongue 3, so is the tongue when swung toward the mandrel through the action of the projection 9 on the arm 8, forced against the said veneer strips, but instead of being subjected to a too great bending straining, the fork-shaped carrier 5 is forced downwards against the action of the spring 6, so that the pin 4 onwhich the tongue is mounted is lowered. Owing to this fact the tongue 3 will not be subjected to any bending straining and consequently there is no risk of the tongue being broken. The elasticity of the spring 6. is so adapted, that it is somewhat slighter than the elasticity of the spring 3, so that there is a guarantee of the carrier- 5 being lowered without the ieo tongue being subjected to a. bending straining.

The tension of the spring 6 and the position of the tongue may be suitably adjusted by V means of the screw 7. The fork-shaped head carrier 5 is guided by the mandrel, while forced downwards, and in this manner the tongue is prevented from occupying any oblique position transversely.

19 The invention may, evidently be applied also to other machines provided with a mandrel or any similar device and with a jamming member, for instance to machines for the manufacturing ofcapsules, tubes of paper. and the like.

I claim: I

1. In a winding device for the manufac turing of boxes for instance the outer casings of push boxes and similar articles the combination of a mandrel, a jamming member for holding the blank of the box, and a carrier for the. said jamming member, which carrier, is slidably and yieldably mounted on the mandrel, transversely of the same.

2. In a winding device for the manufacturing of boxes, for instance the outer casings of push boxes and similar articles, the combination of a mandrel, a jamming member for holding the blank of the box, a forkshaped carrier for the said jamming member, which carrier straddles the mandrel and is guided by the same, aspring actuating the said carrier, and an abutment for the carrier, controlling the position of the same. In testimony whereof I have'hereunto affixed my signature. V V

BROR ANDERS EMIL JOHNSON. 

